[lockjaw02]

LOL, I wasn't even thinking about disposable kits! Not to inform you of my "personal habits", but I've had to pee in the bottle so many times for job requirments over the years that I just naturally assumed they were sending samples to the lab.

Here's a FAQs page on cotinine measurements from a lab. It's pretty accurate from my knowledge. However, I recall there can be as much as a 400 fold variance due to individual's ability to metabolize nicotine efficiently.

[Calpernia]

The kits were what I use to sell when I started at the pharm company. From on the job tests, it is the urine that is used.

This is where the quick test would either say yes or no for initial detection.

The cotinine measurements for amounts of nicotine levels to determine ingestion of foods vs. habitual smoking would have to be determined at a lab level (work ups).

So your info is correct. Just add in the thoughts for the kits.